McArthur G M, Bishop D V M, Proudfoot M
Department of Experimental Psychology, University of Oxford, Oxford, England.
Behav Res Methods Instrum Comput. 2003 May;35(2):329-33. doi: 10.3758/bf03202561.
To make the electroencephalogram (EEG) recording procedure more tolerable, listeners have been allowed in some experiments to watch an audible video while their auditory P1, N1, P2, and mismatch negativity (MMN) event-related potentials (ERPs) to experimental sounds have been measured. However, video sounds may degrade auditory ERPs to experimental sounds. This concern was tested with 19 adults who were instructed to ignore standard and deviant tones presented through headphones while they watched a video with the soundtrack audible in one condition and silent in the other. Video sound impaired the size, latency, and split-half reliability of the MMN, and it decreased the size of the P2. However, it had little effect on the P1 or N1 or on the split-half reliability of the P1-N1-P2 waveform, which was significantly more reliable than the MMN waveform regardless of whether the video sound was on or off. The impressive reliability of the P1 and N1 components allows for the use of video sound during EEG recording, and they may prove useful for assessing auditory processing in listeners who cannot tolerate long testing sessions.
为了使脑电图（EEG）记录过程更易于忍受，在一些实验中允许受试者在测量其对实验声音的听觉P1、N1、P2和失配负波（MMN）事件相关电位（ERP）时观看有声视频。然而，视频声音可能会降低对实验声音的听觉ERP。对19名成年人进行了测试，要求他们在观看视频时忽略通过耳机呈现的标准音和偏差音，视频在一种情况下有声音，在另一种情况下静音。视频声音损害了MMN的幅度、潜伏期和分半信度，并且减小了P2的幅度。然而，它对P1或N1以及P1-N1-P2波形的分半信度几乎没有影响，无论视频声音是否打开，P1-N1-P2波形的信度都显著高于MMN波形。P1和N1成分令人印象深刻的信度使得在EEG记录期间可以使用视频声音，并且它们可能被证明有助于评估无法忍受长时间测试的受试者的听觉处理能力。
